Custom Built Home Additions In Ottawa by OGC

We offer a full range of home addition services, including second-story additions, rear extensions, side additions, garage conversions, and in-law suites.
Whether you're looking to expand your living space upward or outward, we tailor every addition to suit your home's layout, your lifestyle, and the local zoning requierments in Ottawa.

The cost of a home addition in Ottawa generally ranges from $300 to $500 per square foot.

Pricing depends on several factors such as the size and complexity of the addition, the quality of materials and finishes, structural modifications required, and any site-specific challenges.

We provide transparent, detailed estimates upfront so you know exactly what to expect before the project begins.

Most home additions take anywhere from 3 to 6 months to complete, depending on the scope of the work.

The timeline includes the design and planning phase, permit approvals, demolition (if necessary), and full construction.

We keep our clients informed throughout each stage and always strive to stay on schedule.

Yes, a building permit is required for nearly all types of home additions in Ottawa.

In some cases, you may also need zoning variances, especially if your plans exceed current municipal setback limits or height restrictions.

We manage the entire permitting process on your behalf, ensuring full compliance with city regulations.

Yes, we carefully design every addition to blend seamlessly with your existing structure. Our goal is to ensure that your new space looks and feels like a natural extension of your home, with matching exterior finishes, rooflines, window styles, and architectural details.

In many cases, you can remain in your home during the construction process, especially for rear or side additions.

However, for more invasive projects such as second-story additions, temporary relocation might be recommended for safety and convenience.

We’ll help you evaluate the best option based on your specific project.

Our design-build process includes everything from initial concept planning and architectural drawings to permit applications and final construction.

You’ll work with a dedicated project manager throughout the process who serves as your single point of contact, ensuring a smooth and coordinated experience from start to finish.

We begin with a detailed scope of work and a transparent, itemized budget.

Our team is committed to sticking to the agreed-upon costs, and we don’t believe in surprise charges or hidden fees.

Any potential changes are discussed and approved in advance, giving you full control of your investment.

Yes, we offer flexible financing options for qualified homeowners.

Our goal is to make your home addition as accessible and stress-free as possible, so you can build now and pay over time with a structured payment plan.

We’ve completed hundreds of home additions across Ottawa, earning a reputation for quality craftsmanship, timely execution, and transparent communication.

Homeowners choose us because we prioritize their vision, respect their budget, and deliver results that truly enhance their homes.